4.02 Ct. NATURAL Bi Color TOURMALINE GEMSTONE Octagon Cut
Price: $933.05
Product ID: 807237850
Product Name: Tourmaline
Price : $933.05
Weight: 4.02
Jewelry Size: 10 x 7.8 x 5.2 Mm
Shape: Octagon
Color: Bi Color
Clarity: SI
Luster: Good
Origin: Nigeria
Treatment: Unheated
Crystal Structure: Trigonal
Hardness: 7 - 7.5
Specific Gravity: 3.0+
Refractive Index: 1.62 - 1.68
Chemical: Na(Li,Al)3Al6(B03)3 Si6O18(OH)4
